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Do-it-yourself Essential Tools

RRP $11.99

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This is a practical guide to tools: how to choose and use them, shown in 220 photographs. It is a simple and accessible guide to do-it-yourself tools for a wide range of jobs, including tiling, painting, flooring, woodwork and general repairs in the home. It includes photographs for easy identification of the tools. It shows you how to use planes, chisels, saws, drills, hammers, screwdrivers, pliers, sanders and many more. It includes instructions on making the best use of each tool, with hints and tips on selecting the right types. It offers guidelines that show you what to wear, how to handle tools with care, and how to tackle jobs safely to avoid accidents. For any task around the home, tools will be needed. Knowing how to use them efficiently is vital if you want a good result. This book discusses preparation, the right tools to use for a particular job, and how to use them safely and effectively. Useful tips point the way to improving your skills to get the most out of your tools.


Statistical Tools For Measuring Agreement

RRP $271.99

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Agreement assessment techniques are widely used in examining the acceptability of a new or generic process, methodology and/or formulation in areas of lab performance, instrument/assay validation or method comparisons, statistical process control, goodness-of-fit, and individual bioequivalence. Successful applications in these situations require a sound understanding of both the underlying theory and methodological advances in handling real-life problems. This book seeks to effectively blend theory and applications while presenting readers with many practical examples. For instance, in the medical device environment, it is important to know if the newly established lab can reproduce the instrument/assay results from the established but outdating lab. When there is a disagreement, it is important to differentiate the sources of disagreement. In addition to agreement coefficients, accuracy and precision coefficients are introduced and utilized to characterize these sources. This book will appeal to a broad range of statisticians, researchers, practitioners and students, in areas of biomedical devices, psychology, medical research, and others, in which agreement assessment are needed. Many practical illustrative examples will be presented throughout the book in a wide variety of situations for continuous and categorical data.


Statistical Tools For Measuring Agreement

RRP $271.99

Click on the Google Preview image above to read some pages of this book!

Agreement assessment techniques are widely used in examining the acceptability of a new or generic process, methodology and/or formulation in areas of lab performance, instrument/assay validation or method comparisons, statistical process control, goodness-of-fit, and individual bioequivalence. Successful applications in these situations require a sound understanding of both the underlying theory and methodological advances in handling real-life problems. This book seeks to effectively blend theory and applications while presenting readers with many practical examples. For instance, in the medical device environment, it is important to know if the newly established lab can reproduce the instrument/assay results from the established but outdating lab. When there is a disagreement, it is important to differentiate the sources of disagreement. In addition to agreement coefficients, accuracy and precision coefficients are introduced and utilized to characterize these sources.

This book will appeal to a broad range of statisticians, researchers, practitioners and students, in areas of biomedical devices, psychology, medical research, and others, in which agreement assessment are needed. Many practical illustrative examples will be presented throughout the book in a wide variety of situations for continuous and categorical data.


Handbook On The Physics And Chemistry Of Rare Earths

RRP $869.99

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Among the numerous applications of the rare-earth elements, the field of catalysis accounts for a large number. Catalysis represents approximately 20% of the total market sales of rare earths worldwide. As a matter of fact two main applications have been prominent in the last decades: zeolite stabilization for fluid cracking catalysts, and automotive post-combustion catalytic treatment.


The oldest use of rare earths in catalysis deals with the structural and chemical stabilization of the zeolites for petroleum cracking applications. For a long time this has been an area of application for non-separated rare earths. The addition of several percent of rare earths in the pores of the zeolite results in a strong surface acidity, which is essential for an efficient conversion of high-weight molecules into lighter species, like low-octane fuel, even in the very aggressive conditions of the petroleum industry.


The popular demand for high-quality air in spite of the traffic congestion in large cities resulted in larger and larger constraints in the emission exhaust from cars. Thus highly efficient catalysts have had to be designed, and due to the combination of its redox properties and very good thermal stability, cerium oxide has been since the beginning, early in the 1980s, a major component of the three-way catalysts (TWC) now used in all modern gasoline cars.


The future of rare earths in catalysis is probably bright. The fact that approximately 400 patents are applied for yearly in the area since 1992 is an illustration of a very active area. Usage of rare earths in catalysis is expected to grow due to their highly specific properties. Instead of the physical properties used in electronic applications, one deals now with redox properties, water and thermal stability, coordination numbers and so forth. The rare earths are so specific in these properties that their use can hardly be avoided, not only for the beauty of academic studies but also for the development of industrial applications with immediate influence on everyday life.


Careful control of the synthesis conditions and the definition of optimum composition in each case are the keys to the preparation of highly performing compounds for catalytic applications. They must actually be considered as high performance products with functional properties, and not just chemical species.


Chapters devoted primarily to catalysis have been published in earlier volumes of the Handbook. In this volume several more are added. The first is an extension of the earlier chapter 43, on interactions at surfaces of metals and alloys, to reactions such as hydrogenation, methanation, ammonia synthesis, saturated hydrocarbon reactions, dehydrogenation of hydrogenated materials, hydrodesulfurization, and carbon monoxide oxidation. The second chapter reports on the wide variety of catalyzed reactions involving metals and alloys in the innovated form of metal overlayers or bimetallic compounds with some transition metals produced from ammonia solutions. This is followed by a chapter on catalysis with mixed oxides usually having perovskite or perovskite-related structures.


Then follows a comprehensive discussion on the background and current role of cerium oxide and associated materials for post-treatment of exhaust gases for pollution control. These three-way catalysts (TWC) are designed to render harmless the CO, NOx, and unburned hydrocarbons from internal combustion engines. The next chapter considers the wide field of zeolite catalysts containing rare earths from their historic use in petroleum refining in the 1960s to other petrochemical and fine chemical applications today. The final chapter documents the use of the triflates (the trifluoro-methane-sulfonyl group which is a hard Lewis acid in both aqueous and organic solutions) as versatile catalysts in carbon-carbon bond-forming reactions. Their stability in the presence of water, in spite of their being hard Lewis acids, enhances their growing usefulness.


Prehension And Hafting Traces On Flint Tools

RRP $259.99

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The capacity to mount stone tools in or on a handle is considered an important innovation in past human behavior. The insight to assemble two different materials (organic and inorganic) into a better functioning entity indicates the presence of the required mental capacity and technological expertise. Although the identification of stone tool use based on microscopic analysis was introduced in the 1960s, distinguishing between handheld and hafted tool use has remained a more difficult issue. This volume introduces a methodology, based on a systematic, in-depth study of prehension and hafting traces on experimental stone artifacts. The author proposes a number of distinctive macro- and microscopic wear traits for identifying handheld and hafted stone tools and for identifying the exact hafting arrangement. Included with this book is a CD-ROM that contains additional data tables and images.



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Hand Tools Power Tools Mechanic Carpenter
Tools Air Compressors Air Tools Arbortech Allsaw
Automotive Service Tools Cordless Tools Dremel Multi Tools & Accessories Drill Doctor Drill Bit Sharpener
Fans Fein Multimaster Generators Gift Ideas Hand Tools

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